di-tert-butyl peroxide; 1-(4-methoxyphenyl)ethanone Irradiationcomponent of energy attributed to spin delocalization in the series of substituted benzyl radicals in comparison to the unsubstituted case; contribution of radical stabilization at the transition state;

di-tert-butyl peroxide T=24°C; Irradiation; Rate constant;

in 2,2,4-trimethylpentane T=-93.1 - 86.9°C; decarbonylation after a laser irradiation pulse; Ea, Arhhenius parameters; Rate constantThermodynamic data;

in 2,2,4-trimethylpentane Irradiationpulsed laser study of photocleavage;